1-(2,6-bis(4-tolyl)-1,3-dioxano(5,4-d)-1,3-dioxan-4-yl)ethane-1,2-diol

Short-term toxicity to aquatic invertebrates

Description of key information

Acute toxicity testing on Daphnia magna showed the EC50 for Gel-All MD at 48 hours to be greater than 0.10 mg/L.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates

Effect concentration:

0.1 mg/L

Additional information

Gel-All MD was assessed for Acute toxicity, 48 h EC₅₀(immobilisation) in Daphnia magna

The test was conducted using static test conditions according to OECD Guideline No. 202, Part 1 and EEC Directive 67/548 Annex V C.2 as published in 84/449/EEC.

A single test concentration of 0.10 mg/l (4 replicates) was tested.

No mortality occurred in 40 daphnids exposed to a test concentration of 0.10 mg/L for 48 hours.

Time (h)          EC₅₀(mg/L)              95% confidence limits (mg/L)

24                     > 0.10                                          -

48                     > 0.10                                          -

"no effect" level at 24 h >0.10 mg/L

"no effect" level at 48 h >0.10 mg/L

0.10 mg/L was the highest test concentration that could be prepared due to the limited solubility of the test material in water and having regard to the amount of auxiliary solvent permitted in the test.